Portable lamp with solar battery



FIG. 1 is a top right rear perspective view of a portable lamp with solar battery in accordance with my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a right side elevation view thereof, the left side elevation view being a mirror image thereof. 

The ornamental design for “portable lamp with solar battery,” as shown and described. 